Ahem. Yes, my brother’s cousin. (I am feeling guilty right now!)
He is my brother’s cousin because us cousins were born in sets (not on purpose, it just happened that way). Big brother has his two cousins who are within 18 months of his age. I have my two cousins who are within 18 months of my age (though one overlaps into Big brother’s — sometimes we gotta fight to keep her in our set!) Little brother has two cousins in his 18 months. Then one family had anotherboy — he’s the one we all get to spoil! (we couldn’t spoil the youngest “set” of cousins otherwise we’d have had THREE spoiled brats and that would’ve been unthinkable!
So that’s why, though we’re all cousins, we have “our” special cousins. Make sense? Don’t worry, I wasn’t disowning him — just specifying who he was!